210 
Jouriial of Mycology 
[Vol. 12 
3/x to 4/4, with branches one to three-septate, measuring 6/4 to 14/4 
by 3/4 to 4/4; conidia 3/4 to 6/4 by 2/4 to 4/4, usually unicellular, 
pointed oval, gray to sooty, borne in short, branched chains of 2 
to 10; staining sapwood black. 
On the wood of Liquidambar styracifLua L., from various 
points in Arkansas. Collected by H. von Schrenk, July, 1905. 
19. Hormiscium gelatinosum Hedgcock, Mo. Bot. Gard. 
Rept. 17:101-103, pi. 11, fig. 4-8. Colonies yeast-like at first, 
creamy, changing to brown or black, finally becoming fimbriate 
or toruloid; filaments, often toruloid or beaded, cylindrical cells 
5/4 to 10/4 in diameter, and spherical cells 2/4 to 8/4 ; conidia borne 
both on prostrate and upright hyphae, dimorphus, the form on 
prostrate hyphae is of two types, the one hyaline, elliptical, thin- 
walled, fugacious, 8/4 to 12/4 by 3/4 to 5/4, the other brown, ellip¬ 
tical, thick-walled, 10/4 to 14/4 ; the form on short, upright hy¬ 
phae, globose dark olive, 7/4 to 12/4 in diameter, borne in chains 
which do not break apart readily; staining sapwood black. 
On the sapwood of pine, elm and gum, from various points 
in Arkansas and Missouri, collected by H. von Schrenk and Geo. 
G. Hedgcock, 1905. 
20. Penicillium aureum Corda, Prachtfl. 18138, Sacc. 
Syll. Fung. 4:82. Emended, Hedgcock, Mo. Bot. Gard. Rept. 
17:105-107, pi. 11, fig. 1-3. Colonies, gray, or sometimes blue 
green, changing to lemon yellow, or orange red; mycelium, 
dimorphus, filaments, 3/4 to 8/4 in diameter, cells sometimes swol¬ 
len or beaded; sterile hyphae, curled and distorted, lemon yel¬ 
low on acid media, orange red on alkaline, bearing exuded 
granules of a soluble pigment which is yellow with acid, and red 
with alkali; fertile hyphae, erect, 100/4 to 500/4 by 3/4, often with 
two sets of whorled branches, each branch averaging 12/4 by 2/4; 
conidia blue green, pointed oval 3/4 to 4/4 by 1.5/4 to 2/4, borne in 
simple chains of 40 to 80, containing a soluble blue green pig¬ 
ment, not changed in color by acids or alkalis; staining pine sap- 
wood yellow or red. Coremium forms often present on rich 
agar media. 
On the sapwood of Pinus strobus L., Ashland, Wisconsin, 
collected by PI. von Schrenk, April, 1905. 
